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Yamaha MT-09SP 2021 - Checking the Swingarm Operation; Checking the Wheel Bearings; Drive Chain Slack; Lubricating the Swingarm Pivot

Yamaha MT-09SP 2021
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3-18
PERIODIC MAINTENANCE
EAS30641
CHECKING THE WHEEL BEARINGS
The following procedure applies to all of the
wheel bearing.
1. Check:
Wheel bearing
Refer to “CHECKING THE FRONT WHEEL”
on page 4-13 and “CHECKING THE REAR
WHEEL” on page 4-21.
EAS30802
CHECKING THE SWINGARM OPERATION
1. Check:
Swingarm operation
Swingarm not working properly Check the
swingarm.
Refer to “SWINGARM” on page 4-83.
2. Check:
Swingarm excessive play
Refer to “SWINGARM” on page 4-83.
EAS30643
LUBRICATING THE SWINGARM PIVOT
1. Lubricate:
Dust cover
Pivot shaft
Bearing
Oil seal
Collar
Refer to “INSTALLING THE SWINGARM” on
page 4-84.
EAS31923
DRIVE CHAIN SLACK
Checking the drive chain slack
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
NOTICE
ECA13550
A drive chain that is too tight will overload
the engine and other vital parts, and one that
is too loose can skip and damage the swing-
arm or cause an accident. Therefore, keep
the drive chain slack within the specified lim-
its.
1. Shift the transmission into the neutral posi-
tion.
2. Check:
Drive chain slack
Out of specification Adjust.
TIP
Measure the distance “a” between the rib end
on the drive chain guide “1” and the center
point of the drive chain “2”.
The center point “b” of the drive chain is ap-
prox. 32 mm (1.26 in) “c” forward from the edge
“d” of the drive chain guide.
NOTICE
ECA20870
Improper drive chain slack will overload the
engine as well as other vital parts of the mo-
torcycle and can lead to chain slippage or
breakage. If the drive chain slack is more
than the specified limit, the chain can dam-
age the frame, swingarm, and other parts. To
prevent this from occurring, keep the drive
chain slack within the specified limits.
Recommended lubricant
Lithium-soap-based grease
Drive chain slack (Sidestand)
36.0–41.0 mm (1.42–1.61 in)
Drive chain slack (Maintenance
stand)
36.0–41.0 mm (1.42–1.61 in)
Drive chain slack limit (Side-
stand)
46.0 mm (1.81 in)
a
1
2
b
c
d
1
2

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